package doyouknow.group.CnAndZhb.service.impl;

import doyouknow.group.CnAndZhb.dao.second.BCategoryDao;
import doyouknow.group.CnAndZhb.entity.BCategory;
import doyouknow.group.CnAndZhb.service.BCategoryService;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

/**
 * (BCategory)表服务实现类
 *
 * @author makejava
 * @since 2020-11-10 16:14:24
 */
@Service("bCategoryService")
public class BCategoryServiceImpl implements BCategoryService {
    @Resource
    private BCategoryDao bCategoryDao;

    /**
     * 通过ID查询单条数据
     *
     * @param id 主键
     * @return 实例对象
     */
    @Override
    public BCategory queryById(Integer id) {
        return this.bCategoryDao.queryById(id);
    }

    /**
     * 查询多条数据
     *
     * @param offset 查询起始位置
     * @param limit  查询条数
     * @return 对象列表
     */
    @Override
    public List<BCategory> queryAllByLimit(int offset, int limit) {
        return this.bCategoryDao.queryAllByLimit(offset, limit);
    }

    /**
     * 新增数据
     *
     * @param bCategory 实例对象
     * @return 实例对象
     */
    @Override
    public BCategory insert(BCategory bCategory) {
        this.bCategoryDao.insert(bCategory);
        return bCategory;
    }

    /**
     * 修改数据
     *
     * @param bCategory 实例对象
     * @return 实例对象
     */
    @Override
    public BCategory update(BCategory bCategory) {
        this.bCategoryDao.update(bCategory);
        return this.queryById(bCategory.getId());
    }

    /**
     * 通过主键删除数据
     *
     * @param id 主键
     * @return 是否成功
     */
    @Override
    public boolean deleteById(Integer id) {
        return this.bCategoryDao.deleteById(id) > 0;
    }
}